OBD1 to OBD1 straight-through ECU harness. Use this harness to tap into engine sensors, etc. without splicing into your stock harness. An excellent choice for tuners who want to wire in a wideband O2 sensor, etc. without cutting into the vehicle's factory wire harness.
- This harness has all pin locations filled/connected, allowing this harness to be used as an extension on manual transmission and automatic transmission vehicles.